Folding step for subway-cars.



J. 'M. ERNST.

FOLDING STEP FOR SUBWAY CARS.

' APPLICATION FILED MAY 10, 1907. 91 9,333, Patented Apr. 27, 1909. 3SHEETS SHEET 1.

lwventoz ill 17ml J. ERNST. FOLDING STEP FOR SUBWAY CARS.

APPLICATION FILED MAY 10, 1907.

Patented Apr. 27, 1909.,

3 SHEETSSHEET 2.

I IQ 17$ 1% 4, witnesses J. M. ERNST. FOLDING STEP FOR SUBWAY CARS.

91 9,333. APPLIQATION FILED MAY 10, 1907. Patented Apr. 27,

s SHEET8-SHEET a.

35 plate attached to the car.

PATENT OFFICE.

UNITED STATES JULIUSM. ERNST, OF BROOKLYN, NEW YORK.

FOLDING STEP FOR SU'BWAY-CARS.

Specification of Letters Patent.'

Patented. A ril 27, 1909.

Application filed May 10, 1907. Serial in. 372,931.

and more particularly to platform tread plate attachments adapted to beused in connection with the door operating mechanism now in use insubway cars, so that the space between the car platform andstation-platform willbe closed when the door is opened so that alldanger of passengers slipping into the-spacebetween the platform isprevented when gettin on oroif a car.

Another (iliject of my invention is to pro-. vide a curved tread-plateso that it will ad'- just itself to different height platforms.

Another object of my invention is to so construct the ends of the treadplate .operating links by a spring equalizer so that the plates willgive if they come down on a persons foot on the latform.

With these an other objects in view, the invention consists in thenovel. features of construction, combination and arrangement of partshereinafter fully described andpointed out in the claims.

In the drawings forming a (part of this specification:-Figure 1 is a sie view of a portion of a car showing-my improved tread- Fig. 2 isahorizontal sectional view showing the tread-plate lowered in position tobe'used. Fig. 3 is an end view of a car in a subway showing one of thetread-plates dropped on. the stationplatform. Fig. 4 is a plan view ofthe treadplate. Fig. '5 1s a sectional view of the treadplate. Fi 6 is aside viewof my-improved equalizer s ewin the links broken off. Fig. 7 1sa longitudina sectional view of the same.

Fig. 8 is a section taken on linesv 88 of Fig. 7, Fig. 9 is a sectiontaken on lines a-g of Fig. 7.

Referring to the drawings A indicates an ordinary vestibule car.provided -with the usual side door and end doorways. I Pivotally mountedon each side of the end-doorway is a hand lever B, to which is connecteda lever 0 connected to the crank-arm C of a 3 double crank C to theother arm C of which is connected a link C Connected to the end of thelink is a bell crank lever C horizontall disposed under the hood of thecar. The be 1 crank isconnected to a link C which is connected tov anoperating lever C which is pivotally connected at one end to a slide 0mounted in a transverse guideway and at the all of which .are of theordlnary construction of door operating mechanism now in use on subwaycars.

Mounted in the sides of the frames of the side-doorwa s adjacent the carplatform,-are shafts D w 'ch extend forwardly through crank-arms D attheir ends which are connected-to the hand-lever B by links E, E, whichare-connected together by an'equalizer G. The e ualizer is'formed in acasing G having a t readed bore formed in the --closed ends throughwhich works the threaded end of the link E which is adjustably securedthereon by a set-nut H, so that the length of the rod can be adjusted tosuit different heights of platforms. The other end of the casing isopened and externally threaded on which is secured an interiorlythreaded hexagonal cap I by a set-screw 12 and provided: with a bearingsleeve'I through which works the end of the link E on which are securedsleeves J ad'acent their ends by. set-screws- J. A coile 's rin Ksurrounds the links. E between the ea and cap for holding the plateaway'from the door until it is completely closed.

Arranged in the casin between the closed end and sleeve of the lin E isa coiled spring- L so as to prevent the late from injuring a personsfoot who mig t be standing near the edge of the platform if it camedownonit." r f' j Secured on the shafts D in the side door- Way are thesleeves F of a-curved treadplate F provided with a rubber covering F ontheir top, and rubber bufiers F adjacent their outer ends adaptedftorest on theplatform when the tread? lates are lowered. The sleeves F areprovided. with set screws F. adapted to engage the shafts and securelyon the shaft.

other end to a door for operating the same the front of the car and areprovided with.

lock the tread-plates in the desired position 1 From theforegoingdescription it will be readily seen that when the hand leversare operated, the tread-plates will drop onthe station platform Withoutany no se.

of the cars, and yieldable links connecting said plates to thehand-levers.

2. The combination with'a railroad carrovided with sliding side-doorsand hand overs, and nieans connected to said levers foroperating saiddoors, oishafts mounted in said doorways acggcent the car )latformprovided with cra -arins, curve ways and yieldable links connecting"said crank-arms to the hand-levers for the purpose described.

v The combination with az'railroadcar provided with sliding doors andhand-levers and means connected to said hand levers ,for operating' saiddoors,- of sh'afts mounted in vided'with sleeves-mounted on' saidshaits,

set-screws mounted in saidsleeves adapted to engage said shaft,=aru-bher,coverin'gsecuredoverx thegto I of "said plates-rubber ,bufierssecuredun er the end of 'said'p'lates L 'hand-1e-vers.fl,

and Jinks connecting said crank-arms to 4. Y The combination withrailroad 'car provided with 'sli'dingdoors and hand levers,

- and means connected to said hand levers for; operating'said doors, ofcurved tread-platesmounted inthedoorway and links connected said platestot e hand'leversr togethers ring equalizers, connecting -,5. Thecoinbination with a railroad car provided with sliding doors and handlevers,

' V and means connected to: said 'hand levers' for I 'oEeratingsa-iddoors, of tread-plates ino'unte in the doorway, links connected to saidhand-levers adjustablymonnted in. a casing and links connected to saidplates slijdably tread plates secured on-said shaft insaid door-- foroperating'said doors, of shafts mounted in said doorways provided withcrank arms,

connected to said hand levers provided with provided with caps at theirends, links connectedto said crank arms, of the shaft having sleeves attheir ends slidably mounted in said casing, central springs surroundin'said links, said caps and sleeves, and coilec springs arranged injsaidcasings between said sleeves and closed ends.

:7. The combination with a car provided with sliding side doors,of'hand-levers, means connected to said hand-levers for operating saiddoors, shafts mounted in the doorways adjacent the :car platformprovided withcrank-arm's, curved. plates carried by' said shaftsplinksconnected to said crank-arms, casings adjustably connected-to saidlinks,

links slidably mounted-in said. casings con-- a said doorways adjacentsaid platform 'pro-' vided with crank-arms,- of curved plates pro;

nected to said hand-levers and springs surrounding said links withinsaid casings.

8.-The' con1binatio11' witha car, of shafts f the car-platform, curvedplates carried by s'aidshafts, links connected to said crankarmsvirovided with threaded ends, casings rovi ed with closed ends havingthreaded ores secured over the; threaded ends of said links providedwith bearing -ca'ps, :sleeves secured overthe open ends of said sleeves,sleeves'secured over the ends ofsai coiled, s i andlinks with thesleeves for the purpose described. v

' JULIUS MQ ERNST.

Witnesses:

' HERMAN :DONEPP,

ROBERT NEWBER-Y.

provided with sliding doors, and hand levers i and means connected tosaid hand levers,

threaded'ends adjustably mounted in casings casings, links nounted- 1nsaid bearing 5 links coiled springs surrounding said links, 1

s arranged in said casingls be tween't e c osed en s andlinks, and

levers-connected 'to the free ends of the tread-plates secured on saidshafts, links mounted in the doorways of the car adjacent

